| Lane | Swimmer | Team | Place | Time |
|---|---|---|---|---|
| 1 | 15 | 54.82 | ||
| 1 | 6 | 49.21 | ||
| 2 | 10 | 51.77 | ||
| 2 | 4 | 48.45 | ||
| 2 | 21 | DQ | ||
| 3 | 11 | 52.63 | ||
| 3 | 5 | 49.01 | ||
| 3 | 21 | DQ | ||
| 4 | 3 | 46.99 | ||
| 4 | 9 | 50.39 | ||
| 4 | 19 | 59.79 | ||
| 5 | 1 | 41.98 | ||
| 5 | 20 | 1:05.61 | ||
| 5 | 12 | 52.75 | ||
| 6 | 21 | DQ | ||
| 6 | 21 | NS | ||
| 6 | 18 | 58.42 | ||
| 7 | 13 | 52.90 | ||
| 7 | 8 | 49.87 | ||
| 7 | 21 | DQ | ||
| 8 | 7 | 49.64 | ||
| 8 | 16 | 55.13 | ||
| 8 | 17 | 57.23 | ||
| 9 | 14 | 53.47 | ||
| 9 | 2 | 46.15 |